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Table 1
g-factors for breasts simulated with PMMA (based on Dance et al., 2000, 2009, 2011).
| Thick. PMMA (mm) |
Equivalent breast thickness (mm) |
Breast glandularity (%) | g-factors (mGy/mGy)HVL (mm Al) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.30 | 0.35 | 0.40 | 0.45 | 0.50 | 0.55 | 0.60 | 0.65 | 0.70 | 0.75 | 0.80 | |||
| 20 | 21 | 97 | 0.889 | 0.895 | 0.903 | 0.908 | 0.912 | 0.917 | 0.921 | 0.924 | 0.928 | 0.933 | 0.937 |
| 30 | 32 | 67 | 0.940 | 0.943 | 0.945 | 0.946 | 0.949 | 0.952 | 0.953 | 0.956 | 0.959 | 0.961 | 0.964 |
| 40 | 45 | 41 | 1.043 | 1.041 | 1.040 | 1.039 | 1.037 | 1.035 | 1.034 | 1.032 | 1.030 | 1.028 | 1.026 |
| 45 | 53 | 29 | 1.109 | 1.105 | 1.102 | 1.099 | 1.096 | 1.091 | 1.088 | 1.082 | 1.078 | 1.073 | 1.068 |
| 50 | 60 | 20 | 1.164 | 1.160 | 1.151 | 1.150 | 1.144 | 1.139 | 1.134 | 1.124 | 1.117 | 1.111 | 1.103 |
| 60 | 75 | 9 | 1.254 | 1.245 | 1.235 | 1.231 | 1.225 | 1.217 | 1.207 | 1.196 | 1.186 | 1.175 | 1.164 |
| 70 | 90 | 4 | 1.299 | 1.292 | 1.282 | 1.275 | 1.270 | 1.260 | 1.249 | 1.236 | 1.225 | 1.213 | 1.200 |
| 80 | 103 | 3 | 1.307 | 1.299 | 1.292 | 1.287 | 1.283 | 1.273 | 1.262 | 1.249 | 1.238 | 1.226 | 1.213 |
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